What Is Centrifugal Casting?

Centrifugal casting is a unique manufacturing technique that has revolutionized the way many industries produce components. This technology was discovered in the early 1800s and has emerged as the most reliable and cost-effective method of creating high-quality parts in many applications.

Centrifugal casting is a process where molten material is poured into a rotating mold. The centrifugal force generated by the mold’s rotation pushes the material against the mold’s inner surface. The molten material, still under rotation, then cools and solidifies. This rotation exerts centrifugal force on the molten material, drawing impurities and air bubbles to the center of the part.

Types of Centrifugal Castings

There are three primary variations of centrifugal casting:

True Centrifugal Casting: This method involves pouring molten material into a reusable rotating mold that is either vertically or horizontally aligned. The rotation pushes cleaner denser material to the exterior of the wall and draws impurities to the interior. These impurities can then be easily machined out creating a strong, uniform finished product. This method is ideal for making hollow tubes and rings of all shapes and sizes.

Semi-centrifugal Casting: Like true centrifugal casting molten material is poured into a rotating mold. This method, however, generally uses non-permanent molds, and enough material is poured to create a solid part. This method is often used to make gear blanks and other parts where the id (or center) is not critical.

Centrifuging: Also known as centrifuge casting. Molds are made with cavities branching outward from a central hub where the molten material is poured. The rotation of the mold forces the good material out to the cavities and pulls the impurities inward to the central hub. You are left with clean uniform parts in the shape of the cavities. This method is ideal for creating smaller components, such as jewelry and miniature bushings.

The “Centrifugal” in Delta Centrifugal®

Delta Centrifugal®, based in Temple Texas, has been at the forefront of centrifugal casting for over half a century. Delta is a foundry specializing in true centrifugal castings. We utilize several metal casting materials to produce over 200 grades of stainless steel, nickel, cobalt, and copper-based alloys, and cater to diverse industries like aerospace, petrochemical, and defense. Our commitment to quality and customer satisfaction sets us apart. Whether you need your parts as cast, rough machined, or finish machined, we have the expertise and infrastructure to meet your requirements.

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